RHSA-2026:51422HighCVSS 6.5

Red Hat Security Advisory: Red Hat build of MicroShift 4.19.42 security update

Published
August 12, 2026
Last Modified
August 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-35469 →

📋 Description

CVE-2026-35469 — Kubelet: CRI-O: kube-apiserver: Kubelet, CRI-O, kube-apiserver: Denial of Service via SPDY streaming code

🎯 Affected products22

  • Red Hat OpenShift Container Platform 4.19
  • microshift-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.src as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-ai-model-serving-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-ai-model-serving-release-info-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-gateway-api-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-gateway-api-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-gateway-api-release-info-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-greenboot-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-low-latency-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-multus-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-multus-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-multus-release-info-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-networking-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-networking-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-observability-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-olm-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.aarch64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-olm-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.x86_64 as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-olm-release-info-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-release-info-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19
  • microshift-selinux-0:4.19.42-202608062155.p0.g46c9d67.assembly.4.19.42.el9.noarch as a component of Red Hat OpenShift Container Platform 4.19

✅ Remediation

For MicroShift 4.19, read the following documentation for important instructions on how to install the latest RPMs and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/red_hat_build_of_microshift/4.19/html/red_hat_build_of_microshift_release_notes/index Workaround: To mitigate this issue, review and restrict the assignment of Kubernetes cluster roles `pods/portforward (create)`, `pods/exec (create)`, `pods/attach (create)`, and `nodes/proxy (get/create)` to untrusted users or service accounts. Ensure that only authorized and necessary entities possess these permissions. Modifying RBAC policies can impact the functionality of applications and services that rely on these permissions; careful testing is recommended.

🔗 References (4)